{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical"], "input": "Six compounds were isolated and identified from this plant : three phenolic compounds ( kampferol , kampferol - 3 - glucoside and kampferol - 3 - galactoside ) in addition to three steroidal compounds ( 1 - ethoxypentacosane , heptacosan - 1 - ol and beta - sitosterol ) ."}
{"Chemical": ["phenolic", "kampferol", "kampferol - 3 - glucoside", "kampferol - 3 - galactoside", "1 - ethoxypentacosane", "heptacosan - 1 - ol", "beta - sitosterol"]}